3670 vs 3600
We too were torn between the two, bought the 3670 a year ago. Really liked the kitchen and thought we liked the bathroom, but decided the bathroom was a bit too "open". That is, we decided that a separate stool area is better. In previous 5th wheels we had a closet like the 3600 which we didn't have in the 3670. So, we traded the 3670 for a new 3600. We now have the separate closet in the bedroom and a separate stool area. The 3600 has a bit more room in the living area, I would say about 2 feet more. We didn't order the fireplace in either unit, we like the extra storage instead. Also I think there is a bit more room between the sink and stove. I notice the difference when I get down to light the oven. We do miss the extra counter towards the front of the kitchen, but floor to ceiling pantry is sufficient . We had the side/side 12 cu/ft fridg in 3670. The wife didn't like it, as the freezing area was too narrow. We now have the 10 cu/ft option. She likes it better. She feels there is more room in the fridg area, or maybe because it is wider, it is more practical. WFU (Works for Us)